(Low to high power) The 1900NCP Field Star is our most popular e-collar and is truly the star of our product line. Designed for pet, K-9 and sport dog training where high output stimulation is required. Precise stimulation level (0-127); 1/2 mile range; Nick, Constant and non-stimulting pager/vibration; Rechargeable Ni-MH batteries; Fully waterproof collar/receiver and transmitter; LCD screen displays exact level of stimulation even in dark or low light conditions.; Three bar battery life indicator; Two collar receivers; Carrying case. Type: Remote Trainers